I only just thought of this. I have the same cartoon-y profile pic from a foreign TV show on a bunch of my accounts, I wonder if its unique enough and worth tracking.

  • If it’s not widely used, and your usernames are similar, anyone could make a reasonable guess that you are the same person.

    As far as the paranoia around, say, Amazon being able tonsource that info from other sites for their advertising purposes, it doesn’t work that way.